论文标题
打破BEC
Breaking BEC
论文作者
论文摘要
在这项工作中，研究了相对论标量冷凝物的经典演变的量子校正。通过两种不同的扰动方法解决了问题：2颗粒式（2PI）有效作用和自我耦合中的扩展。在弱耦合方案中，观察到经典状态的反应性。用量子休息时间确定相应的时间尺度。
In this work quantum corrections to the classical evolution of a relativistic scalar condensate are studied. The problem is approached by means of two different perturbative approaches: the 2-particle-irreducible (2PI) effective action and the expansion in the self-coupling. In the weak coupling regime, the decoherence of the classical state is observed. The corresponding timescale is identified with the quantum break-time.
